WELL · 42-329-36589 · DISTRICT 8
Dunigan 12 #1
Midland County · Spraberry (Trend Area) field · Producing · Vertical
Dunigan 12 #1 (API 42-329-36589) is a well in Midland County operated by Diamondback E&P LLC, completed February 18, 2011 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits between 2010 and 2017, permitted to 12,000 ft.
It was permitted by Endeavor Energy Resources L.P. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Spraberry, Strawn, Atoka, Mississippian.
Its lease has reported 75.2K barrels of oil and 187K mcf of gas since February 2011, last reporting in July 2026.
Operator of record
Permitted by Endeavor Energy Resources L.P.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,237 permits on file · (855) 247-5920
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Endeavor Energy Resources L.P.Aug 1, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 2
- permits on file
- Aug 1, 2017
- last permit issued
- Feb 18, 2011
- completed
- 75.2K
- cumulative oil, bbl
- 187K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 18, 2011
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
32.009258, -101.851820
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Midland County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Dunigan "12" O-10-40893 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 75.2K | 187K | Feb 2011 – Jul 2026 |
Oil, barrels lease total
Last 12 months 3,172 · prior 12 3,357(-6%)
Gas, mcf lease total
Last 12 months 6,777 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Endeavor Energy Resources L.P.Feb 2011 → Apr 2024
- 2DE IV Operating, LLCMay 2024 → Apr 2025
- 3Diamondback E&P LLCMay 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 829275-99 | Recompletion | Endeavor Energy Resources L.P. | Jul 27, 2017 | Aug 1, 2017 | Jan 21, 2011 | 11,376 |
| 694854-99 | Drill | Endeavor Energy Resources L.P. | Apr 21, 2010 | May 21, 2010 | Sep 30, 2010 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-40893 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,683 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Spraberry | 7,225 | -4,542 |
| SpraberrySPRABERRY (TREND AREA) | 7,225 | -4,542 |
| Strawn | 10,325 | -7,642 |
| Atoka | 10,550 | -7,867 |
| MississippianMISS | 11,075 | -8,392 |
| Mississippian | 11,075 | -8,392 |
| Devonian | 11,250 | -8,567 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,765 | 10,277 | Perforated |
| 7,765 | 11,334 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 302 | 17.5 | 340 S |
| 8.625 | 4,995 | 11 | 625 S |
| 5.5 | 11,376 | 7.875 | 1,350 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Nov 5, 2018 | Sep 27, 2018 | — |
| 00 | Jan 19, 2018 | Oct 10, 2017 | — |
| 00 | Oct 31, 2011 | Feb 23, 2011 | Yes |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-329-36589 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-36589 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Fasken '11'42-329-35112
0.9 KM · Endeavor Energy Resources L.P. · Section with this well →
| Spraberry | 7,275 | -4,580 |
| Spraberry | 7,800 | -5,105 |
| Dean | 8,600 | -5,905 |
| Wolfcamp | 9,475 | -6,780 |
| Strawn | 10,325 | -7,630 |
| Atoka | 10,700 | -8,005 |
Sriracha 1342-329-45860
0.9 KM · Crownquest Operating, LLC · Section with this well →
| Santa Rosa | 861 | 1,821 |
| Rustler | 1,552 | 1,130 |
| Yates | 2,370 | 312 |
| Grayburg | 3,935 | -1,253 |
| San Andres | 4,141 | -1,459 |
| Glorieta | 5,049 | -2,367 |
| Clear Fork | 6,207 | -3,525 |
| Spraberry | 7,167 | -4,485 |
10 TOPS · FIRST 8
Fasken '11'42-329-35008
1.0 KM · Endeavor Energy Resources L.P. · Section with this well →
| Spraberry | 7,225 | -4,531 |
| Spraberry | 7,775 | -5,081 |
| Dean | 8,575 | -5,881 |
| Wolfcamp | 9,425 | -6,731 |
| Strawn | 10,275 | -7,581 |
| Atoka | 10,575 | -7,881 |
| Mississippian | 10,980 | -8,286 |
| Devonian | 11,250 | -8,556 |
Green Goddess 1342-329-44905
1.1 KM · Crownquest Operating, LLC · Section with this well →
| Clear Fork | 6,214 | -3,539 |
| Spraberry | 7,182 | -4,507 |
| Spraberry | 8,517 | -5,842 |
| Wolfcamp | 8,698 | -6,023 |
| Strawn | 10,276 | -7,601 |
| Atoka | 10,725 | -8,050 |
| Mississippian | 11,030 | -8,355 |
| Devonian | 11,194 | -8,519 |
10 TOPS · FIRST 8
Hale -N-42-329-31763
1.1 KM · Tempo Energy, Inc. · Section with this well →
| Rustler | 1,649 | 1,047 |
| Yates | 2,414 | 282 |
| San Andres | 4,021 | -1,325 |
| Spraberry | 7,193 | -4,497 |
| Dean | 8,505 | -5,809 |
| Wolfcamp | 8,711 | -6,015 |
| Strawn | 10,251 | -7,555 |
| Atoka | 10,434 | -7,738 |
11 TOPS · FIRST 8
Cheese 1842-329-40264
2.1 KM · Crownquest Operating, LLC · Section with this well →
| Santa Rosa | 863 | 1,809 |
| Rustler | 1,543 | 1,129 |
| Yates | 2,355 | 317 |
| Grayburg | 3,910 | -1,238 |
| San Andres | 4,116 | -1,444 |
| Glorieta | 5,019 | -2,347 |
| Clear Fork | 6,175 | -3,503 |
| Spraberry | 7,153 | -4,481 |
10 TOPS · FIRST 8
Jack D. Burkes42-329-42384
2.4 KM · Fasken Oil and Ranch, Ltd. · Section with this well →
| Santa Rosa | 1,000 | 1,685 |
| Yates | 3,000 | -315 |
| Grayburg | 3,888 | -1,203 |
| Seven Rivers | 3,970 | -1,285 |
| San Andres | 3,981 | -1,296 |
| Queen | 4,370 | -1,685 |
| Clear Fork | — | |
| Glorieta | — |
10 TOPS · FIRST 8
Chili 10142-329-43244
2.4 KM · Crownquest Operating, LLC · Section with this well →
| Yates | 2,365 | 305 |
| Grayburg | 3,920 | -1,250 |
| San Andres | 4,270 | -1,600 |
| Glorieta | 5,307 | -2,637 |
| Clear Fork | 6,210 | -3,540 |
| Spraberry | 7,157 | -4,487 |
| Spraberry | 8,468 | -5,798 |
| Queen | — |
10 TOPS · FIRST 8
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/32936589, documented in the API reference.